Covid-19 Shines New Spotlight on Breathing Filters: What Do the Experts Say?

The Importance of “High Quality” Airway Filters - Between Breathing Circuit & Patient’s Airways

2020년 12월 4일

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In anesthesiology the prevention of healthcare-associated infections (HCAI) has been discussed for decades1 and the use of breathing filters has been recommended for the prevention of tuberculosis, influenza and hepatitis C. 2-6 


COVID‐19: Societies Recommend the Use of Breathing Filters


Today the world is facing an unprecedented healthcare crisis caused by a pandemic novel beta coronavirus, the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). In terms of the COVID‐19 pandemic, national and international societies have been quick to cotton on to the new situation. Organizations like The European Resuscitation Council, the British NHS, the US American Anesthesia Patient Safety Foundation and the Safe Airway Society of Australia / New Zealand have all stressed the importance of placing “high quality” airway filters between the breathing circuit and the patient’s airways to “prevent circuit contamination and minimize aerosolization in expired gas” – in short, to minimize the risk of virus spread.7-10


Expert Opinion Survey: What is the Most Important Filter Quality? 


We conducted a survey and let 200 experts from France, Germany, the UK and the USA have their say: Clinicians (anesthesiologists, intensive care specialists, anesthesia tech staff) and admin staff (nurses and managers) in the operating room and on the ICU stated what they would rate as the filters’ most important qualities, when they choose one.


The Product Makes The Difference: “Highest Bacterial / Viral Efficiency” is the Most Important Quality


Two thirds (66%) of the respondents answer that the product’s performance makes the difference and is the number one decisive factor, when choosing a breathing filter. This is made up of 29% of all respondents believing that the “highest bacterial / viral efficiency” of a filter is especially important and 37% of all respondents valuing additional product performance parameters, including “best resistance to wetting / clogging” (15%), “longest filter life” (14%) and “largest number of times you can nebulize through the filter” (8%).



Graphic 1: Answers of survey respondents (in %) to the question: Which level of importance you place around each factor when choosing a breathing system filter? 




Breathing System Filter users as well as professional organizations acknowledge the need for high efficiency filtration during anesthesia and intensive care ventilation. In laboratory studies as well as in clinical trials Pall Breathing System Filters have been shown to retain both airborne microorganisms at >99.999% and liquid borne bacteria and viruses at 100% efficiency, including Influenza A, Hepatitis C, HIV and Mycobacterium tuberculosis.


Download our full check list HERE and find out more about the validation of Pall’s breathing filter.





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Volker Luibl 박사, MBA

Luibl 박사는 의료 기기 및 임상 과학 분야에서 광범위한 전문성을 쌓은 Pall Medical의 뛰어난 수요 생성 마케팅 관리자입니다.
Luibl 박사는 의료 기기 및 임상 과학 분야에서 광범위한 전문성을 쌓은 Pall Medical의 뛰어난 수요 생성 마케팅 관리자입니다.
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